Pak Exam MCQs
A. Janas Salk
B. Robert Koch
C. Albert Sabin
D. Sigmund Freud
Answer & Solution
Option: A
Explanation :Polio vaccine, preparation of poliovirus given to prevent polio, an infectious disease of the nervous system. The first polio vaccine, known as inactivated poliovirus vaccine (IPV) or Salk vaccine, was developed in the early 1950s by American physician Jonas Salk. This vaccine contains killed virus and is given by injection. The large-scale use of IPV began in February 1954, when it was administered to American schoolchildren. In the following years, the incidence of polio in the United States fell from 18 cases per 100,000 people to fewer than 2 per 100,000.
Jonas Salk became a national hero when he allayed the fear of polio with his vaccine, approved in 1955. Although it was the first polio vaccine, it was not to be the last; Albert Sabin introduced an oral vaccine in the 1960s that replaced Salk’s.
Explanation :Polio vaccine, preparation of poliovirus given to prevent polio, an infectious disease of the nervous system. The first polio vaccine, known as inactivated poliovirus vaccine (IPV) or Salk vaccine, was developed in the early 1950s by American physician Jonas Salk. This vaccine contains killed virus and is given by injection. The large-scale use of IPV began in February 1954, when it was administered to American schoolchildren. In the following years, the incidence of polio in the United States fell from 18 cases per 100,000 people to fewer than 2 per 100,000.
Jonas Salk became a national hero when he allayed the fear of polio with his vaccine, approved in 1955. Although it was the first polio vaccine, it was not to be the last; Albert Sabin introduced an oral vaccine in the 1960s that replaced Salk’s.
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